### Investigating Opinions about Global Warming#### OverviewA poll was conducted to investigate opinions about global warming. Specifically, respondents who answered "yes" when asked if there is solid evidence that the Earth is getting warmer were subsequently asked to select a cause of global warming. The choices given were:1. Human activity2. Natural patterns3. Don't knowThe data collected from this poll is summarized in the table below, which considers the respondents' sex in relation to their choice:| | Human Activity | Natural Patterns | Don't Know ||---------------|----------------|------------------|------------|| **Male** | 331 | 162 | 46 || **Female** | 317 | 179 | 45 |To test if the sex of the respondent is independent of their choice regarding the cause of global warming, we use a significance level of 0.01.#### Hypothesis Testing**Identify the Null and Alternative Hypotheses:**- \(H_0\) (Null Hypothesis): The sex of the respondent is independent of their choice for the cause of global warming.- \(H_1\) (Alternative Hypothesis): The sex of the respondent is not independent of their choice for the cause of global warming.**Compute the Test Statistic:**- Round to three decimal places as needed.**Find the Critical Value(s):**- Round to three decimal places as needed and use a comma to separate the values if more than one value is required.#### Conclusion Based on Hypothesis Test:Based on the computed test statistic and the critical values determined from the chi-square distribution table (using degrees of freedom and significance level), the conclusion can be determined as follows:- Reject \(H_0\): There is sufficient evidence to warrant rejection of the claim that the sex of the respondent is independent of the choice for the cause of global warming. - Fail to Reject \(H_0\): There is insufficient evidence to warrant rejection of the claim that the sex of the respondent is independent of the choice for the cause of global warming.#### Chi-Square Distribution TableBelow is a partial chi-square distribution table with areas to the right of the critical values and corresponding degrees of freedom:| Degrees of Freedom | 0.995 | 0.99 | 0.975 | 0.95 | 0.90 | 0.10 |

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Answered: A poll was conducted to investigate…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Chi-sauare distribution table Question Viewer Degrees of Freedom 1 234569 7 8 10 0.995 0.010 0.072 0.207 0.412 0.676 0.989 1.344 1.735 2.156 0.99 0.020 0.115 0.297 0.554 0.872 1.239 1.646 2.088 2.558 Area to the Right of the critical value 0.975 0.001 0.051 0.216 0.484 0.831 1.237 1.690 2.180 2.700 3.247 0.95 0.004 0.103 0.352 0.711 1.145 1.635 2.167 2.733 3.325 3.940 I 0.90 0.016 0.211 0.584 1.064 1.610 2.204 2.833 3.490 4.168 4.865 0.10 2.706 4.605 6.251 7.779 9.236 10.645 12.017 13.362 14.684 15.987
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A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if Question Viewer idence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.05 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? Human activity Natural patterns Male 340 164 Female 319 161 Click here to view the chi-square distribution table. Identify the null and alternative hypotheses. The sex of the respondent The sex of the respondent Ho: H₁: Compute the test statistic. Don't know 27 29 and the choice for the cause of global warming are independent. and the choice for the cause of global warming are dependent. (Round to three decimal places as needed.)
A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.01 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? Human activity Natural patterns Don't know Male 310 139 36 Female 335 156 34 Click here to view the chi-square distribution table. Identify the null and alternative hypotheses. Họ: The sex of the respondent and the choice for the cause of global warming are independent. H1: The sex of the respondent and the choice for the cause of global warming are dependent. Compute the test statistic. 0.422 (Round to three decimal places as needed.) Find the critical value(s). (Round to three decimal places as needed.…
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A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.01 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? identify the null and alternative hypothesis What is the test statistic? What is the p-value? What is the critical value? Human activity Natural patterns Don't know Male 343 150 28 Female 356 173 30 Chi-Square Degrees of Freedom 0.995 0.99 0.975 0.95 0.90 0.10 0.05 0.025 0.01 0.005 1 - - 0.001 0.004 0.016 2.706 3.841 5.024 6.635 7.879 2 0.010 0.020 0.051 0.103…
A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.05 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? Human activity Natural patterns Don't knowMale 313 133 52Female 306 157 49 Identify the null and alternative hypotheses. Compute the test statistic. (round 3 decimal places) Find the critical value(s). (round 3 decimal places) What is the conclusion based on the hypothesis test?
A poll was conducted to investigate opinions about global warming. The respondents who answered yes when asked if there is solid evidence that the earth is getting warmer were then asked to select a cause of global warming. The results are given in the accompanying data table. Use a 0.01 significance level to test the claim that the sex of the respondent is independent of the choice for the cause of global warming. Do men and women appear to agree, or is there a substantial difference? Human activity Natural patterns Don't know Male 334 156 48 Female 314 134 44 Click here to view the chi-square distribution table. Но The sex of the respondent and the choice for the cause of global warming are independent. Hy: The sex of the respondent and the choice for the cause of global warming are dependent. Compute the test statistic. (Round to three decimal places as needed.) Find the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) What is…

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